Improvement in modes of forming turned seams



S. W. SHUREY. Mode of Forming Turned. Seams.

No. 137,966. Patented A rmwsm.

M/p'lne5583. i Inventor:

AM. PIIOTU'UT/MGR/IPIIIC 00. N H OSBORNE PROCESS] UNITED STATES PAT E NQrFIoE.

SAMUEL W. SHOREY, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN MODES OF FORMING TURNED SEAMS.

Specification forming part of Letters Patent No. 137,966, dated April15, 1873; application filed March 5, 1873:

To all whom it may concern.-

Be it known that I, SAMUEL W. SHOREY', of Boston, in the county ofSuffolk and State of Massachusetts, have invented an Improve ment inForming Turned Seams; andIdo hereby declare that the following, 'takenin connection with the drawing which accompanies and forms part of thisspecification, is a description of my invention sufficient to enablethose skilled in the art to practice it.

In the formation of what are known as turned seams, (in making bootlegs,) in contradistinction to lapped seams, the back and front piecesof the leg are laid one upon the other, the two outer faces in contact,and the adjacent outwardly-facing edges are then united by sewing, afterwhich the leg is turned, to bring it right side out, and the seam ispressed down to make it flat on the outer side. A welt is usuallystitched be. tween the edges, this welt being trimmed at the outer sideto impart a proper finish. These seams, being made with thread, andhaving to undergo severe strain in the turning, pressing, and finishingoperations, are liable to rip, and the thread is apt to rot. To make apractically-indestructible seam of this kind, I first unite the edges bywire or wire-fastenings, and then turn the edges upon the wire, pressingthem down with force sufficient not only to flatten the seam, but toforce the inner edges laterally over the wire, so as to embed, orpartially embed, the outer or presented portions thereof, the nature ofthe seam enabling a much greater pressure to be used than upon seamsconstructed with thread, so that heavy boots, in which a lapped seam isgenerally necessary, may be constructed with a turned and welted scam,in which the parts will be more firmly united, and the seam of bettershape than is possible when the thread is used for such a seam.

The drawing represents a section (enlarged) of my improved turned seam.

a 1) denote the two parts to be united c, a

welt-strip, which may be placed between the edges. These edges beinglaid together, they are united by metal fastenings, which are formed ofwire staples, such as are shown in my patent, No. 131,308, which staplesmay be made and driven with a machine like what is shown in my patentdated February 25, 1873, the points of the staples being twistedtogether for strength. The parts having been thus united, the leg isdrawn over an arm, and the edges are rubbed or hammered down upon thefastenings, the rubbing or hammering operation flattening the seam. atboth sides of the fastenings.

The invention has been particularly described in connection withside-seamin g bootlegs; but it may, of course, be used for the union ofany edges which are to be or may be united by a turned seam.

